FCC ID: 2AJRDIT-48 Bluetooth Passive Earmuff Hearing Protection

Thisdevicecomplieswithpart15oftheFCCRules. Operationissubjecttothefollowingtwoconditions:

(1)Thisdevicemaynotcauseharmfulinterference, and(2)thisdevicemustacceptanyinterference received,includinginterferencethatmaycause UK&Europe uk-eurosupport@isotunesaudio.com NorthAmerica support@isotunesaudio.com 1-844-396-3737 Monday-Friday9-5ET

) Haven Technologies, INC. I Ld tu Nes 873 W Carmel Dr. ISOtunes LINK 2.0 Carmel, IN 40 Model IT-48 Batch No. 21 RY () FE C FCC ID: 2AJRDIT-48 1 974 4cm x 1.5cm

Haven Technologies, Inc Declaration of difference February 14, 2022 Date:

The product: Bluetooth Passive Earmuff Hearing Protection Model No.: IT-48, IT-49, IT-70, HH-250BM-Q01, HH-250BM-Q02 FCC ID: 2AJRDIT-48 Dear Examiner, Above models are identical in schematic and structure. Only the name and colour are different for all the models, therefore the test performed on the model IT-48 and record in this report. I attest that the certified device will not be capable of ad-hoc mode operation outside of the grant conditions. Name: Brad Geswein Company: Haven Technologies, Inc Address: 1025 Pine Hill Way, Carmel, Indiana 46021 USA Tel/Fax: 317 490 7197 E-Mail: brad.geswein@HavenTechUSA.com Signature Sincerely.

Haven Technologies, Inc 1025 Pine Hill Way, Carmel, Indiana 46021 USA DATE: Dec. 28, 2021 Haven Technologies, Inc 1025 Pine Hill Way, Carmel, Indiana 46021 USA Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint below company and person:

Name Position Company Name Dongguan Dongdian Testing Service Co.,Ltd. Address Damon Hu Manager 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678-850 Damon_hu@dgddt.com Tel / Fax E-Mail to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commissions regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by CETECOM GmbH, still resides with:

Applicant name Address Yours sincerely, Haven Technologies, Inc 1025 Pine Hill Way, Carmel, Indiana 46021 USA Signatory Brad Geswein Director of Products Name Position Company Name Haven Technologies, Inc Address Tel / Fax 317 490 7197 / 317 490 7197 1025 Pine Hill Way, Carmel, Indiana 46021 USA Pete.Murphy@HavenTechUSA.com E-Mail

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048

<12/28/2021>

TO WHOM IT MAY CONCERN Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b) (4) of the Freedom of Information Act, we request confidentiality for the following products:

FCC ID: 2AJRDIT-48 Model name: IT-48, IT-49, IT-70, HH-250BM-Q01, HH-250BM-Q02 For the product stated above, we request that the following information be held confidential;

Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days 180 days 180 days 180 days 180 days External Photos Internal Photos Block Diagram Schematics Test Setup Photos Users Manual Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name: Brad Geswein Company: Haven Technologies, Inc Address: 1025 Pine Hill Way, Carmel, Indiana 46021 USA Phone: 317 490 7197 Fax: 317 490 7197 E-Mail: brad.geswein@HavenTechUSA.com